SPS 323.155SPS 323.155
Multiple appliance venting. Two or more listed gas-or liquid-fueled appliances may be connected to a common gravity-type flue provided the appliances are equipped with listed primary safety controls and listed shutoff devices and comply with the following requirements.

SPS 323.155(1)(1) The appliances shall be located in the same story, except for engineered venting systems.

SPS 323.155(2)(2) The appliances shall be joined at a manifold or Y-type fitting as close to the chimney as possible, unless the connector from each appliance enters a separate chimney inlet and the inlets are offset at least 12 inches vertically or the separate inlets occur at right angles to each other.

SPS 323.155(3)(3) The chimney connector and chimney flue shall be sized to accommodate the total volume of flue gases. For gas-burning appliances the venting area shall be at least equal to the size of the largest vent connectors plus at least 50% of the area of the other vent connectors.

SPS 323.16(3)(3)Gas piping systems. Gas piping systems, extending from the point of delivery to the connection with each gas-fired appliance or device, shall be installed to conform with NFPA 54, National Fuel Gas Code.

SPS 323.17(1)(1)Outdoor equipment. Outdoor equipment shall be located so as to not restrict the air flow or recirculation of air. Outdoor equipment so located as to be subject to damage shall be protected.

SPS 323.17(2)(2)Indoor equipment. All indoor equipment shall be installed with a minimum of 24 inches of clearance for service.

Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published. Report errors (608) 266-3151.